US2962474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stabilizing halogenated butyl rubber against gelation with an organic sulfur compound, and stabilized product obtained thereby
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-03-05
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Granted: 1960-11-29
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Expires: 1977-03-05
Abstract
No abstract record available.
Inventors
- 👤 James V Fusco
- 👤 Samuel B Robison
- 👤 Alfred L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:18
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/378; C08K5/45; C08K5/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A PROCESS FOR PREPARING A COPOLYMER OF 85 TO 99.5% OF A C4 TO C8 ISOOLEFIN WITH 15 TO 0.5% OF A C4 TO C14 MULTIOLEFIN CONTAINING AT LEAST ABOUT 0.5 WEIGHT PERCENT OF COMBINED HALOGEN IN ITS STRUCTURE WHICH HAS BEEN RECOVERED FROM A WATER SLURRY, THE IMPROVEMENT WHICH COMPRISES BLENDING SAID COMPOLYMER WITH 0.01 TO 10 WEIGHT PERCENT OF AN ORGANIC SULFER COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
69 words
IN A PROCESS FOR PREPARING A COPOLYMER OF 85 TO 99.5% OF A C4 TO C8 ISOOLEFIN WITH 15 TO 0.5% OF A C4 TO C14 MULTIOLEFIN CONTAINING AT LEAST ABOUT 0.5 WEIGHT PERCENT OF COMBINED HALOGEN IN ITS STRUCTURE WHICH HAS BEEN RECOVERED FROM A WATER SLURRY, THE IMPROVEMENT WHICH COMPRISES BLENDING SAID COMPOLYMER WITH 0.01 TO 10 WEIGHT PERCENT OF AN ORGANIC SULFER COMPOUND OF THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |